Fastener



FIG. 1 is a front, right side perspective view of the fastener;

FIG. 2 is a back, left side perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a right view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a top view thereof.

The broken lines in the drawings depict unclaimed subject matter. 

CLAIM The ornamental design of a fastener, as shown and described. 